Product Specification

SYSTEM SPECIFICATION
SpeechLine Digital Wireless
SL TS 153 GN-L Set DW
3/7
ARCHITECT‘S SPECIFICATION
A wireless RF transmission system designed for presen-
tation use and other applications where maximum speech
intelligibility is required.
The system shall consist of a stationary receiver, a wire-
less tablestand and a condenser gooseneck microphone.
Operating in the license-free 1.9 GHz band (frequency ran-
ges are between 1,880 and 1,930 MHz, depending on coun-
try-specific regulations), the system shall use automatic
frequency management to determine the best free avai-
lable frequency and to automatically start the transmis-
sion. Additionally, the system shall incorporate automatic
interference management, allowing the transmitter and
receiver to move to an undisturbed, compatible frequen-
cy with no audio signal interruption, should interference
occur. Furthermore, advanced 256-bit AES encryption shall
be used for secure wireless transmission.
The system’s AF frequency response shall range from 20 –
20,000 Hz. The dynamic range shall be > 120 dB (A). Total
harmonic distortion (THD) at 1 kHz shall be typical 0.1 %.
Signal-to-noise ratio shall be > 90 dB (A). Latency shall be
19 ms. Operating temperature shall range from -10 °C to
+55 °C (+14 °F to +131 °F).
The user interface of the receiver shall be operated by jog
dial and OLED display. The receiver shall have dedicated
pairing, escape and power buttons.
The receiver shall feature a low-cut filter as well as spe-
ech-optimized sound profiles or custom settings with a
7-band graphic equalizer. The receiver’s RF sensitivity
shall be -90 dBm. RF output power of the receiver’s back
channel shall be adaptive and up to 250 mW (country-spe-
cific). The receiver’s audio output shall utilize a balanced
XLR-3M socket with a maximum output of +18 dBu along
with two unbalanced RCA sockets with a maximum out-
put of +6 dBu. The receiver shall feature automatic gain
optimization. Two reverse SMA sockets shall be provided
for connecting the antennas. The receiver shall feature
RJ-45 network connectivity compatible with IPv4 and IPv6
networks. For remote control the receiver shall have media
control protocol integration.
The receiver shall operate on 12 V DC power supplied from
the NT 12-4C power supply unit (100-240 V AC, 50/60 Hz,
for use in the USA, the UK, and Europe) or the NT 2-3
power supply unit (100-240 V AC, 50/60 Hz, for use in
countries other than the USA, the UK, and Europe). Power
consumption shall be 350 mA. The dimensions shall be
approximately 168 x 212 x 43 mm (6.61" x 8.35" x 1.69").
Weight shall be approximately 828 grams (1.83 lbs). The
receiver shall be the Sennheiser SL Rack Receiver DW.
The wireless tablestand shall be designed for use with the
Sennheiser MEG 14-40-L-II gooseneck microphone and be
optimized for podium discussions, speeches and lectures.
The tablestand shall be powered by one Sennheiser Lit-
hium-Ion rechargeable accupack with a typical operating
time of 10 hours and shall support wireless charging as
well as charging via USB. In addition, the tablestand shall
be capable of being remotely controlled and monitored via
the Sennheiser Control Cockpit software.
The tablestand shall feature a 5-pin XLR socket for
connection of XLR-5 gooseneck microphones with a logic
control and a signal light ring. RF output power shall be
adaptive and up to 250 mW (country-specific). The AF
frequency response shall range from 75 – 20,000 Hz. The
maximum input level shall be 1.7 Vrms and input impedan-
ce shall be 30 kΩ. The tablestand shall have automatic
sensitivity adjustment.
Dimensions shall be 166.7 x 120.2 x 47.9 mm (6.56" x 4.73"
x 1.88"). Weight (without accupack) shall be approximately
660 grams. Operating temperature shall range from 10 °C
to 45 °C (50 °F to 113 °F).
The tablestand shall be the Sennheiser SL Tablestand
153-S DW.
The microphone suitable for use with the wireless tab-
lestand shall be a condenser type with a cardioid pick-up
pattern and a sensitivity of 15 mV/Pa. Maximum sound
pressure level shall be 130 dB SPL. It shall have a fre-
quency response of 50 Hz to 20,000 Hz. Nominal equi-
valent noise level shall be 26 dBA (37 dB weighted as per
CCIR 468-3). Output shall be low impedance balanced
(<100 ohms). Operating temperature shall be 0 °C to 40 °C
(32 °F to 104 °F). The microphone shall operate from an ex-
ternal 12 V to 48 V DC phantom power source; the lighted
LED ring shall operate from an external 12 – 30 V AC or
DC power source current consumption shall be 3 mA. The
microphone shall offer radio frequency interference (RFI)
shielding against intermodulation from wireless equipment
or devices. The microphone shall be a gooseneck design
ensuring precise alignment of the microphone and noise-
less operation. It shall incorporate a self-contained power
module with an XLR-5M type connector at the base, which
includes connection for the lighted LED ring power supply.
The gooseneck microphone shall be the Sennheiser MEG
14-40.
The wireless RF transmission system shall be the Sennhei-
ser SpeechLine Digital Wireless SL TS 153 GN-L Set DW.